OPTi digital handheld refractometer

Let's get digital

The OPTi digital handheld refractometer is an instrument for measuring the refractive index of a substance. It may be used to control the dissolved solids or blend ratios of numerous products from fresh fruit to industrial chemicals using a minimal amount of sample. No waste and no mess.

Fits in your pocket

Pocket sized and easy to use, OPTi refractometers are perfect for taking measurements on-the-go, whether it be in the vineyard testing for ripeness or in a factory with industrial chemicals, the compact design of the OPTi refractometer fits neatly in the palm of your hand.

Made in the UK

Built using stainless steel injection molding to construct the elegant easy-clean prism dish and ultrasonic welding to bond the housings and a rubberised switch membrane to protect against moisture ingress you can be sure the OPTi is ready for whatever you throw at it.

Extensive range of scales

The OPTi comes in a range of scales to suit your needs. Whichever model you need, you can be sure you're picking will be built to the same high standards as the next.

Calibration and AG Test Mode

All OPTi refractometers incorporate a unique "AG Test Mode" that, unlike other makes of handheld refractometers that dictate the need to use short shelf-life and hence expensive sucrose based solutions for verification, facilitates the use of long-life AG Fluid calibration materials without having to consider scale range or compensation type.

Water ZERO calibration on all models - no need for expensive sucrose solutions.

Supplied with Certificate of Calibration

A Certificate of Calibration is supplied with all OPTi refractometers showing actual results of the traceable UKAS Certified Reference Materials used for testing. Fixed price re-certification service also available from Bellingham + Stanley.

Can't find the scale you're looking for? Speak to our friendly customer service team to find out how we can help.